Part Number MIL-PRF-221

Non Wire Wound Variable Resistor
Description

Resistor

Stock Availability  condition code chart

Part number mil-prf-221 is in stock in the following quantities and conditions.

  • NS: 2
  • NE: 11
  • AR: 1

Note: Availability of this item was last updated 09/29/2022 and may have changed since then. Request a quote for up to date pricing and availability.

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
mil-prf-221
Demil:
No
Shelf Life:
UOM:
NIIN:
000012900
NSN
National Stock Number:
5905-00-001-2900 5905000012900
TXT
Description:
Non Wire Wound Variable Resistor
INC
INC
Item Name Code:
37406
MRC:
The number of individual elements.AAPN
Section Quantity:
1
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.AAQL
Body Style:
Cylindrical bushing mounted
MRC:
An indication that the level of probability that an item will operate without failure,at a specified rated capability,at a specified temperature,and for a specified period of time,has been established by testing random samples of production lot.AARG
Reliability Indicator:
Not established
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
2.188 inches
MRC:
The length of a straight line which passes through the center of the body,and terminates at the circumference.ABPM
Body Diameter:
0.875 inches
MRC:
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.ABWV
Shaft Diameter:
0.125 inches
MRC:
A measurement of the longest dimension of the shaft,in distinction from width.ABXF
Shaft Length:
1.500 inches
MRC:
None.ADAP
Mounting Bushing Length:
0.250 inches
MRC:
A measurement of the longest dimension of the body,in distinction from width.ADAQ
Body Length:
0.688 inches
MRC:
A measurement of the longest straight line across a circular cross-sectional plane.ADAV
Overall Diameter:
1.063 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the shaft.AEDX
Shaft Style:
Round, slotted
MRC:
The location of the contact arm when there is no electrical continuity between the moving contact and the resistive element.AEEZ
Contact Arm Electrical Off Position:
Fully ccw
MRC:
Indicates the type of facility or arrangement provided for moving the variable contact(s).AEFD
Actuator Type:
Single shaft
MRC:
The maximum amount of turning force required to initiate the actuator movement.AEFK
Maximum Starting Torque:
6.00 inch-ounces
MRC:
The maximum amount of force requred to maintain actuator movement.AEFL
Maximum Running Torque:
0.50 inch-ounces
MRC:
The maximum amount of turning force that can be applied through the operating shaft with0ut damage to the stops.AEFM
Maximum Stop Torque:
80.00 inch-ounces
MRC:
Indicates the location of a mechanical device which prevents the turning of the item on its mounted surface,expressed by the twelve hour clock designation.AEFN
Nonturn Device Location:
At 6 oclock
MRC:
The linear measurement of the distance from the actuator centerline to the centerline of the nonturn device.AEFP
Nonturn Device Radius:
0.250 inches
MRC:
The length of a straight line which passes through the center of a coaxial cylinder which would bound the crest of an external thread or the root of an internal thread.AJYN
Screw Thread Diameter:
0.250 inches
MRC:
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.AJYP
Screw Thread Series Designator:
Unef
MRC:
The number of screw threads on the item per linear inch measured on a line parallel to the thread axis,including incomplete threads.AJYQ
Screw Thready Qty Per Inch (tpi):
32.0
MRC:
The position of the terminal/s/ for making connection to an item.APXH
Terminal Location:
Radially positioned over less than half the circumference
MRC:
The means of attaching the item.AXGY
Mounting Method:
Standard bushing
MRC:
A measure of the opposition to the flow of direct or alternating current per section.CQCC
Electrical Resistance Per Section:
15.000 ohms single section
MRC:
The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.CQCK
Rotary Actuator Travel In Angular Deg:
300.0
MRC:
The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.CQGN
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power:
340.0 single section
MRC:
The maximum amount of electrical energy that can be expended per section,expressed in watts.CRGD
Power Dissipation Rating Per Section In Watts:
12.5 heat sink single section
MRC:
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.CRSS
Resistance Tolerance Per Section In Percent:
-10.0/+10.0 single section
MRC:
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.CRSS
Resistance Tolerance Per Section In Percent:
-10.0 to 10.0 single section
MRC:
The feature that controls the actuator travel.CRSX
Actuator Travel Control Feature:
Stops
MRC:
The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.CSDH
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power:
25.0 single section
MRC:
The rate of change and distribution of resistance per section,in relation to the rotation of the control shaft,which establishes a standard taper curve designated by an alphabetic character and accepted for common usage.CSDL
Standard Taper Curve Per Section:
A single section
MRC:
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.TEST
Test Data Document:
81349-mil-r-22 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
MRC:
Indicates the type and number of terminals for providing electrical connection.TTQY
Terminal Type And Quantity:
3 tab, solder lug
MRC:
The document designator of the specification or standard which established the item of supply.ZZZK
Specification Data:
81349-mil-r-22/1 government specification

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